All products below are verified from esysense.com/collections/motion-sensor-bulbs as of 2026.
1. Radar Bulb — Auto On/Off
(i) Base: B22
(ii) Wattage: 7W
(iii) Function: Auto On/Off
(iv) Link: esysense.com/products/motion-sensor-bulb-auto-on-off-day-night-7w
2. Motion Sensor Bulb — Auto On/Off
(i) Base: B22
(ii) Wattage: 10W
(iii) Function: Auto On/Off
(iv) Link: esysense.com/products/motion-sensor-bulb-auto-on-off-10w
3. Motion Sensor Bulb — Auto On/Off + Day/Night
(i) Base: B22
(ii) Wattage: 10W
(iii) Function: Auto On/Off + LDR
(iv) Link: esysense.com/products/motion-sensor-day-night-bulb-10w
4. Motion Sensor Bulb — Auto On/Off
(i) Base: E27
(ii) Wattage: 7W
(iii) Function: Auto On/Off
(iv) Link: esysense.com/products/motion-sensor-bulb-auto-on-off-e27-7w
5. Motion Sensor Bulb — Auto On/Off + Day/Night
(i) Base: E27
(ii) Wattage: 10W
(iii) Function: Auto On/Off + LDR
(iv) Link: esysense.com/products/motion-sensor-bulb-with-auto-on-off-day-night-e27-10w
6. Motion Sensor Bulb — Auto On/Off
(i) Base: E27
(ii) Wattage: 10W
(iii) Function: Auto On/Off
(iv) Link: esysense.com/products/motion-sensor-bulb-auto-on-off-e27-10w
Quick base check: if your bulb pushes in and twists to lock — B22 (bayonet). If it screws clockwise — E27. Most older Indian ceiling fittings use B22; modern pendants typically use E27.
Why Radar Sensing Matters for Indian Bathrooms and Kitchens
All Esysense motion sensor bulbs use radar (microwave) detection — confirmed in their product listings. This matters for Indian homes for three specific reasons:
(i) Indian summer performance: PIR sensors detect body heat against background ambient temperature. In Delhi, Lucknow, Nagpur, or Ahmedabad in May, room temperatures reach 38-42 degrees C — the heat differential with a 37 degrees C body collapses. PIR sensors miss triggers or false-triggers. Radar detects movement, not heat — completely temperature-independent.
(ii) Bathroom steam immunity: radar signals propagate through steam and humidity without degradation. PIR optical lenses can be partially obscured by steam condensation. A radar bulb in a bathroom ceiling works identically whether the room is dry or full of hot shower steam.
(iii) Kitchen conditions: cooking smoke, steam from pressure cookers, and heat from the stove do not interfere with radar detection. The sensor is detecting movement, not thermal signatures.
Bottom line:
Radar sensing for Indian homes is not a premium upgrade — it is the minimum specification for reliable year-round performance. A PIR bulb that works in October but misses triggers in May and is not fit for Indian purpose.
Which Motion Sensor Bulb Is Best for a Bathroom?
Bathroom lights are the single highest-return motion sensor upgrade in any Indian home. A typical bathroom light runs 3-4 hours daily; actual use is 45-60 minutes. The saving begins from the first day.
1. Standard Indian Attached Bathroom — B22 Fitting
(i) Best Pick: 7W B22 Auto On/Off
(ii) Reason: Adequate brightness, standard fitting, and fastest payback period (typically under 2 months)
2. Larger Master Bathroom — B22 Fitting
(i) Best Pick: 10W B22 Auto On/Off
(ii) Reason: Better floor coverage and brightness for larger spaces
3. Bathrooms with E27 Fitting
(i) Best Pick: 7W E27 Auto On/Off
(ii) Reason: Same performance as the B22 equivalent with the correct base type
4. Large Bathroom with E27 Fitting
(i) Best Pick: 10W E27 Auto On/Off
(ii) Reason: Suitable for master bathrooms requiring higher brightness
5. Bathroom with Good Natural Daylight
(i) Best Pick: 10W B22 Day/Night
(ii) Reason: LDR sensor prevents unnecessary daytime activation
Day/Night (LDR) note: the B22 10W and E27 10W include an LDR sensor that prevents activation in natural daylight. For a windowless interior bathroom, this is the wrong model — the LDR would keep the bulb OFF during the day even when you're inside. Use standard Auto On/Off for all windowless bathrooms.
Bottom line:
For most Indian homes: the 7W B22 Auto On/Off is the correct bathroom choice. Sufficient brightness, standard B22 fitting, and payback under 2 months. The most affordable radar sensor bulb from a verified Indian brand in 2026.
Which Motion Sensor Bulb Is Best for a Kitchen?
Indian cooking generates 15-25 kitchen visits per day — quick trips to grab ingredients, check the stove, rinse, plate up. The kitchen light runs 8-10 hours daily for 2-3 hours of actual cooking activity. A motion sensor bulb eliminates 5-7 hours of unnecessary illumination daily.
1. Standard Indian Kitchen — B22 Fitting
(i) Best Pick: 10W B22 Auto On/Off
(ii) CCT Recommendation: Cool White (6000K–6500K)
(iii) Reason: Accurate food colour rendering and bright task lighting
2. Kitchen with E27 Fitting
(i) Best Pick: 10W E27 Auto On/Off
(ii) CCT Recommendation: Cool White (6000K–6500K)
3. Small Galley Kitchen or Pantry — B22 Fitting
(i) Best Pick: 7W B22 Auto On/Off
(ii) CCT Recommendation: Warm White or Cool White
(iii) Reason: 7W provides sufficient illumination for compact spaces
4. Kitchen with Covered Balcony or Large Window
(i) Best Pick: 10W B22 Day/Night
(ii) Reason: Prevents unwanted daytime operation when natural light is available
CCT guidance: for kitchens, Cool White (6000-6500K) is strongly preferred. It renders food colours accurately, creates a clean alert working environment, and matches the standard appearance of professional kitchen lighting. Warm White (2700-3000K) makes the kitchen feel cosier but can make ingredients and food appear off-colour under the light.
Bottom line:
Monthly electricity saving in an Indian kitchen: from 8 hours daily manual to approximately 2 hours sensor-controlled, at 10W and Rs.8/unit = Rs.210 saved per month. Payback on the Rs.272 bulb: approximately 1.5 months.
Quick Selection Guide — B22 vs E27 by Room
1. B22 (Push-and-Twist)
(i) Small Bathroom or Pantry: 7W B22 Auto On/Off
(ii) Kitchen or Larger Bathroom: 10W B22 Auto On/Off
(iii) Balcony or Covered Outdoor Area: 10W B22 Day/Night
2. E27 (Screw-In)
(i) Small Rooms, Corridors, or Pantry: 7W E27 Auto On/Off
(ii) Kitchen or Medium-Sized Room: 10W E27 Auto On/Off
(iii) Balcony or Outdoor Area with Daylight Exposure: 10W E27 Day/Night
Installation — 5 Minutes, No Tools
1. Switch wall switch OFF.
2. Remove the old bulb — anticlockwise unscrew (E27) or push-and-twis
